Draft horses are like any other horse.
They generaly don't need much food for their size (my standie needs about twice as much as my dads draft, both same height, the draft waaay bigger in width)
They're generaly a bit special in their heads tho.. calm but stubborn, a bit slow since they need time to decide wether they should actually listen to you this time or not, intelligent and patient.
They can be great horses for the right person.. I love their looks but can't stand their minds (I want a horse that's light to move, sensetive, fast to respond and doesn't have to think three minutes before he decides if it's worth the trouble listening :P Others, like my dad, likes a horse that has a lot of ''own will'', is safe, does as it's told but not much more unless it's something really fun, and ties more to one person.) Not that a draft can't be sesetive.. all horses can, but it's just not the same. X) It's impossible to describe if you don't know it..